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I'd recommend linking to all your own properties using rel="me". You can see the tag in common usage on Twitter and Instagram  profiles, where the user's website link is tagged using rel="me". You can basically connect up all your online properties as belonging to the same person/brand/entity - and who wouldn't want that. You're indicating to Google that all those webpages are related to you. By linking to your social profiles from your website using rel="me", you're confirming that those profiles are officially yours.